cgi: do not specify charset in Atom HTTP header

The feed itself already specifies it in XML, and we risk confusing
clients if XML::Atom::SimpleFeed changes in the future.  This also
increases consistency for CGI vs static-file serving.

diff --git a/public-inbox-cgi b/public-inbox-cgi
index 5c21fddaf9a238328f0ab66f5bb4319fd5df4fb7..4e727da8a61fd20df7fd3921388314e15234be86 100755 (executable)
--- a/public-inbox-cgi
+++ b/public-inbox-cgi
@@ -104,8 +104,7 @@ sub invalid_list_mid {
 sub get_atom {
        my ($ctx, $cgi, $top) = @_;
        require PublicInbox::Feed;
-       [ '200 OK',
-         { 'Content-Type' => 'application/xml; charset=us-ascii' },
+       [ '200 OK', { 'Content-Type' => 'application/xml' },
          PublicInbox::Feed->generate({
                        git_dir => $ctx->{git_dir},
                        listname => $ctx->{listname},